US Bridges

SR 42 over I 59

Good

Forrest County, Mississippi · SR 42 over I 59 · Structure no. 31000420180574B

Built
2021
4 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
299 ft
3 main spans
Daily traffic
13,000
2023 count
Owner
State
State Highway Agency

About this bridge

SR 42 over I 59 is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 42 over I 59 in Forrest County, Mississippi. It was built in 2021, so it is 4 years old, younger than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,000 vehicles a day, roughly 10% of them trucks, projected to reach 14,000 by 2043. The structure is 299 ft (91.2 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 42
CrossesI 59
LocationSR 42 over I 59
RouteState Highway 42
Coordinates31.38173, -89.32439
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.1 US tons
Inventory rating47.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length299 ft (91.2 m)
Longest span99 ft (30.2 m)
Deck width59 ft (17.9 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2023)
Projected traffic14,000 by 2043
Trucks10%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 42 over I 59 built?

It was built in 2021, making it 4 years old in 2025.

What condition is SR 42 over I 59 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does SR 42 over I 59 carry?

About 13,000 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SR 42 over I 59?

The structure is 299 ft (91.2 m) long with a longest span of 99 ft (30.2 m) and a deck 59 ft wide.

Who owns SR 42 over I 59?

It is owned by the State Highway Agency.